error early in auto_cpu_offload

Author: sayakpaul

src/diffusers/modular_pipelines/components_manager.py

@@ -160,7 +160,10 @@ def __call__(self, hooks, model_id, model, execution_device):
         if len(hooks) == 0:
             return []
 
-        current_module_size = model.get_memory_footprint()
+        try:
+            current_module_size = model.get_memory_footprint()
+        except AttributeError:
+            raise AttributeError(f"Do not know how to compute memory footprint of `{model.__class__.__name__}.")
 
         device_type = execution_device.type
         device_module = getattr(torch, device_type, torch.cuda)
@@ -703,19 +706,28 @@ def enable_auto_cpu_offload(self, device: Union[str, int, torch.device] = None,
         if not is_accelerate_available():
             raise ImportError("Make sure to install accelerate to use auto_cpu_offload")
 
-        # TODO: add a warning if mem_get_info isn't available on `device`.
+        if device is None:
+            device = get_device()
+        if not isinstance(device, torch.device):
+            device = torch.device(device)
+
+        device_type = device.type
+        device_module = getattr(torch, device_type, torch.cuda)
+        if not hasattr(device_module, "mem_get_info"):
+            raise NotImplementedError(
+                f"`enable_auto_cpu_offload() relies on the `mem_get_info()` method. It's not implemented for {str(device.type)}."
+            )
+
+        if device.index is None:
+            device = torch.device(f"{device.type}:{0}")
 
         for name, component in self.components.items():
             if isinstance(component, torch.nn.Module) and hasattr(component, "_hf_hook"):
                 remove_hook_from_module(component, recurse=True)
 
         self.disable_auto_cpu_offload()
         offload_strategy = AutoOffloadStrategy(memory_reserve_margin=memory_reserve_margin)
-        if device is None:
-            device = get_device()
-        device = torch.device(device)
-        if device.index is None:
-            device = torch.device(f"{device.type}:{0}")
+
         all_hooks = []
         for name, component in self.components.items():
             if isinstance(component, torch.nn.Module):